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<h1><a href="spanner_v1.html">Cloud Spanner API</a> . <a href="spanner_v1.projects.html">projects</a> . <a href="spanner_v1.projects.instances.html">instances</a> . <a href="spanner_v1.projects.instances.databases.html">databases</a> . <a href="spanner_v1.projects.instances.databases.backupSchedules.html">backupSchedules</a></h1>
<h2>Instance Methods</h2>
<p class="toc_element">
  <code><a href="#close">close()</a></code></p>
<p class="firstline">Close httplib2 connections.</p>
<p class="toc_element">
  <code><a href="#create">create(parent, backupScheduleId=None, body=None, x__xgafv=None)</a></code></p>
<p class="firstline">Creates a new backup schedule.</p>
<p class="toc_element">
  <code><a href="#delete">delete(name, x__xgafv=None)</a></code></p>
<p class="firstline">Deletes a backup schedule.</p>
<p class="toc_element">
  <code><a href="#get">get(name, x__xgafv=None)</a></code></p>
<p class="firstline">Gets backup schedule for the input schedule name.</p>
<p class="toc_element">
  <code><a href="#getIamPolicy">getIamPolicy(resource, body=None, x__xgafv=None)</a></code></p>
<p class="firstline">Gets the access control policy for a database or backup resource. Returns an empty policy if a database or backup exists but does not have a policy set. Authorization requires `spanner.databases.getIamPolicy` permission on resource. For backups, authorization requires `spanner.backups.getIamPolicy` permission on resource. For backup schedules, authorization requires `spanner.backupSchedules.getIamPolicy` permission on resource.</p>
<p class="toc_element">
  <code><a href="#list">list(parent, pageSize=None, pageToken=None, x__xgafv=None)</a></code></p>
<p class="firstline">Lists all the backup schedules for the database.</p>
<p class="toc_element">
  <code><a href="#list_next">list_next()</a></code></p>
<p class="firstline">Retrieves the next page of results.</p>
<p class="toc_element">
  <code><a href="#patch">patch(name, body=None, updateMask=None, x__xgafv=None)</a></code></p>
<p class="firstline">Updates a backup schedule.</p>
<p class="toc_element">
  <code><a href="#setIamPolicy">setIamPolicy(resource, body=None, x__xgafv=None)</a></code></p>
<p class="firstline">Sets the access control policy on a database or backup resource. Replaces any existing policy. Authorization requires `spanner.databases.setIamPolicy` permission on resource. For backups, authorization requires `spanner.backups.setIamPolicy` permission on resource. For backup schedules, authorization requires `spanner.backupSchedules.setIamPolicy` permission on resource.</p>
<p class="toc_element">
  <code><a href="#testIamPermissions">testIamPermissions(resource, body=None, x__xgafv=None)</a></code></p>
<p class="firstline">Returns permissions that the caller has on the specified database or backup resource. Attempting this RPC on a non-existent Cloud Spanner database will result in a NOT_FOUND error if the user has `spanner.databases.list` permission on the containing Cloud Spanner instance. Otherwise returns an empty set of permissions. Calling this method on a backup that does not exist will result in a NOT_FOUND error if the user has `spanner.backups.list` permission on the containing instance. Calling this method on a backup schedule that does not exist will result in a NOT_FOUND error if the user has `spanner.backupSchedules.list` permission on the containing database.</p>
<h3>Method Details</h3>
<div class="method">
    <code class="details" id="close">close()</code>
  <pre>Close httplib2 connections.</pre>
</div>

<div class="method">
    <code class="details" id="create">create(parent, backupScheduleId=None, body=None, x__xgafv=None)</code>
  <pre>Creates a new backup schedule.

Args:
  parent: string, Required. The name of the database that this backup schedule applies to. (required)
  body: object, The request body.
    The object takes the form of:

{ # BackupSchedule expresses the automated backup creation specification for a Spanner database.
  &quot;encryptionConfig&quot;: { # Encryption configuration for the backup to create. # Optional. The encryption configuration that is used to encrypt the backup. If this field is not specified, the backup uses the same encryption configuration as the database.
    &quot;encryptionType&quot;: &quot;A String&quot;, # Required. The encryption type of the backup.
    &quot;kmsKeyName&quot;: &quot;A String&quot;, # Optional. This field is maintained for backwards compatibility. For new callers, we recommend using `kms_key_names` to specify the KMS key. Only use `kms_key_name` if the location of the KMS key matches the database instance&#x27;s configuration (location) exactly. For example, if the KMS location is in `us-central1` or `nam3`, then the database instance must also be in `us-central1` or `nam3`. The Cloud KMS key that is used to encrypt and decrypt the restored database. Set this field only when encryption_type is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form `projects//locations//keyRings//cryptoKeys/`.
    &quot;kmsKeyNames&quot;: [ # Optional. Specifies the KMS configuration for the one or more keys used to protect the backup. Values are of the form `projects//locations//keyRings//cryptoKeys/`. The keys referenced by `kms_key_names` must fully cover all regions of the backup&#x27;s instance configuration. Some examples: * For regional (single-region) instance configurations, specify a regional location KMS key. * For multi-region instance configurations of type `GOOGLE_MANAGED`, either specify a multi-region location KMS key or multiple regional location KMS keys that cover all regions in the instance configuration. * For an instance configuration of type `USER_MANAGED`, specify only regional location KMS keys to cover each region in the instance configuration. Multi-region location KMS keys aren&#x27;t supported for `USER_MANAGED` type instance configurations.
      &quot;A String&quot;,
    ],
  },
  &quot;fullBackupSpec&quot;: { # The specification for full backups. A full backup stores the entire contents of the database at a given version time. # The schedule creates only full backups.
  },
  &quot;incrementalBackupSpec&quot;: { # The specification for incremental backup chains. An incremental backup stores the delta of changes between a previous backup and the database contents at a given version time. An incremental backup chain consists of a full backup and zero or more successive incremental backups. The first backup created for an incremental backup chain is always a full backup. # The schedule creates incremental backup chains.
  },
  &quot;name&quot;: &quot;A String&quot;, # Identifier. Output only for the CreateBackupSchedule operation. Required for the UpdateBackupSchedule operation. A globally unique identifier for the backup schedule which cannot be changed. Values are of the form `projects//instances//databases//backupSchedules/a-z*[a-z0-9]` The final segment of the name must be between 2 and 60 characters in length.
  &quot;retentionDuration&quot;: &quot;A String&quot;, # Optional. The retention duration of a backup that must be at least 6 hours and at most 366 days. The backup is eligible to be automatically deleted once the retention period has elapsed.
  &quot;spec&quot;: { # Defines specifications of the backup schedule. # Optional. The schedule specification based on which the backup creations are triggered.
    &quot;cronSpec&quot;: { # CrontabSpec can be used to specify the version time and frequency at which the backup is created. # Cron style schedule specification.
      &quot;creationWindow&quot;: &quot;A String&quot;, # Output only. Scheduled backups contain an externally consistent copy of the database at the version time specified in `schedule_spec.cron_spec`. However, Spanner might not initiate the creation of the scheduled backups at that version time. Spanner initiates the creation of scheduled backups within the time window bounded by the version_time specified in `schedule_spec.cron_spec` and version_time + `creation_window`.
      &quot;text&quot;: &quot;A String&quot;, # Required. Textual representation of the crontab. User can customize the backup frequency and the backup version time using the cron expression. The version time must be in UTC timezone. The backup will contain an externally consistent copy of the database at the version time. Full backups must be scheduled a minimum of 12 hours apart and incremental backups must be scheduled a minimum of 4 hours apart. Examples of valid cron specifications: * `0 2/12 * * *` : every 12 hours at (2, 14) hours past midnight in UTC. * `0 2,14 * * *` : every 12 hours at (2, 14) hours past midnight in UTC. * `0 */4 * * *` : (incremental backups only) every 4 hours at (0, 4, 8, 12, 16, 20) hours past midnight in UTC. * `0 2 * * *` : once a day at 2 past midnight in UTC. * `0 2 * * 0` : once a week every Sunday at 2 past midnight in UTC. * `0 2 8 * *` : once a month on 8th day at 2 past midnight in UTC.
      &quot;timeZone&quot;: &quot;A String&quot;, # Output only. The time zone of the times in `CrontabSpec.text`. Currently, only UTC is supported.
    },
  },
  &quot;updateTime&quot;: &quot;A String&quot;, # Output only. The timestamp at which the schedule was last updated. If the schedule has never been updated, this field contains the timestamp when the schedule was first created.
}

  backupScheduleId: string, Required. The Id to use for the backup schedule. The `backup_schedule_id` appended to `parent` forms the full backup schedule name of the form `projects//instances//databases//backupSchedules/`.
  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # BackupSchedule expresses the automated backup creation specification for a Spanner database.
  &quot;encryptionConfig&quot;: { # Encryption configuration for the backup to create. # Optional. The encryption configuration that is used to encrypt the backup. If this field is not specified, the backup uses the same encryption configuration as the database.
    &quot;encryptionType&quot;: &quot;A String&quot;, # Required. The encryption type of the backup.
    &quot;kmsKeyName&quot;: &quot;A String&quot;, # Optional. This field is maintained for backwards compatibility. For new callers, we recommend using `kms_key_names` to specify the KMS key. Only use `kms_key_name` if the location of the KMS key matches the database instance&#x27;s configuration (location) exactly. For example, if the KMS location is in `us-central1` or `nam3`, then the database instance must also be in `us-central1` or `nam3`. The Cloud KMS key that is used to encrypt and decrypt the restored database. Set this field only when encryption_type is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form `projects//locations//keyRings//cryptoKeys/`.
    &quot;kmsKeyNames&quot;: [ # Optional. Specifies the KMS configuration for the one or more keys used to protect the backup. Values are of the form `projects//locations//keyRings//cryptoKeys/`. The keys referenced by `kms_key_names` must fully cover all regions of the backup&#x27;s instance configuration. Some examples: * For regional (single-region) instance configurations, specify a regional location KMS key. * For multi-region instance configurations of type `GOOGLE_MANAGED`, either specify a multi-region location KMS key or multiple regional location KMS keys that cover all regions in the instance configuration. * For an instance configuration of type `USER_MANAGED`, specify only regional location KMS keys to cover each region in the instance configuration. Multi-region location KMS keys aren&#x27;t supported for `USER_MANAGED` type instance configurations.
      &quot;A String&quot;,
    ],
  },
  &quot;fullBackupSpec&quot;: { # The specification for full backups. A full backup stores the entire contents of the database at a given version time. # The schedule creates only full backups.
  },
  &quot;incrementalBackupSpec&quot;: { # The specification for incremental backup chains. An incremental backup stores the delta of changes between a previous backup and the database contents at a given version time. An incremental backup chain consists of a full backup and zero or more successive incremental backups. The first backup created for an incremental backup chain is always a full backup. # The schedule creates incremental backup chains.
  },
  &quot;name&quot;: &quot;A String&quot;, # Identifier. Output only for the CreateBackupSchedule operation. Required for the UpdateBackupSchedule operation. A globally unique identifier for the backup schedule which cannot be changed. Values are of the form `projects//instances//databases//backupSchedules/a-z*[a-z0-9]` The final segment of the name must be between 2 and 60 characters in length.
  &quot;retentionDuration&quot;: &quot;A String&quot;, # Optional. The retention duration of a backup that must be at least 6 hours and at most 366 days. The backup is eligible to be automatically deleted once the retention period has elapsed.
  &quot;spec&quot;: { # Defines specifications of the backup schedule. # Optional. The schedule specification based on which the backup creations are triggered.
    &quot;cronSpec&quot;: { # CrontabSpec can be used to specify the version time and frequency at which the backup is created. # Cron style schedule specification.
      &quot;creationWindow&quot;: &quot;A String&quot;, # Output only. Scheduled backups contain an externally consistent copy of the database at the version time specified in `schedule_spec.cron_spec`. However, Spanner might not initiate the creation of the scheduled backups at that version time. Spanner initiates the creation of scheduled backups within the time window bounded by the version_time specified in `schedule_spec.cron_spec` and version_time + `creation_window`.
      &quot;text&quot;: &quot;A String&quot;, # Required. Textual representation of the crontab. User can customize the backup frequency and the backup version time using the cron expression. The version time must be in UTC timezone. The backup will contain an externally consistent copy of the database at the version time. Full backups must be scheduled a minimum of 12 hours apart and incremental backups must be scheduled a minimum of 4 hours apart. Examples of valid cron specifications: * `0 2/12 * * *` : every 12 hours at (2, 14) hours past midnight in UTC. * `0 2,14 * * *` : every 12 hours at (2, 14) hours past midnight in UTC. * `0 */4 * * *` : (incremental backups only) every 4 hours at (0, 4, 8, 12, 16, 20) hours past midnight in UTC. * `0 2 * * *` : once a day at 2 past midnight in UTC. * `0 2 * * 0` : once a week every Sunday at 2 past midnight in UTC. * `0 2 8 * *` : once a month on 8th day at 2 past midnight in UTC.
      &quot;timeZone&quot;: &quot;A String&quot;, # Output only. The time zone of the times in `CrontabSpec.text`. Currently, only UTC is supported.
    },
  },
  &quot;updateTime&quot;: &quot;A String&quot;, # Output only. The timestamp at which the schedule was last updated. If the schedule has never been updated, this field contains the timestamp when the schedule was first created.
}</pre>
</div>

<div class="method">
    <code class="details" id="delete">delete(name, x__xgafv=None)</code>
  <pre>Deletes a backup schedule.

Args:
  name: string, Required. The name of the schedule to delete. Values are of the form `projects//instances//databases//backupSchedules/`. (required)
  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # A generic empty message that you can re-use to avoid defining duplicated empty messages in your APIs. A typical example is to use it as the request or the response type of an API method. For instance: service Foo { rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty); }
}</pre>
</div>

<div class="method">
    <code class="details" id="get">get(name, x__xgafv=None)</code>
  <pre>Gets backup schedule for the input schedule name.

Args:
  name: string, Required. The name of the schedule to retrieve. Values are of the form `projects//instances//databases//backupSchedules/`. (required)
  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # BackupSchedule expresses the automated backup creation specification for a Spanner database.
  &quot;encryptionConfig&quot;: { # Encryption configuration for the backup to create. # Optional. The encryption configuration that is used to encrypt the backup. If this field is not specified, the backup uses the same encryption configuration as the database.
    &quot;encryptionType&quot;: &quot;A String&quot;, # Required. The encryption type of the backup.
    &quot;kmsKeyName&quot;: &quot;A String&quot;, # Optional. This field is maintained for backwards compatibility. For new callers, we recommend using `kms_key_names` to specify the KMS key. Only use `kms_key_name` if the location of the KMS key matches the database instance&#x27;s configuration (location) exactly. For example, if the KMS location is in `us-central1` or `nam3`, then the database instance must also be in `us-central1` or `nam3`. The Cloud KMS key that is used to encrypt and decrypt the restored database. Set this field only when encryption_type is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form `projects//locations//keyRings//cryptoKeys/`.
    &quot;kmsKeyNames&quot;: [ # Optional. Specifies the KMS configuration for the one or more keys used to protect the backup. Values are of the form `projects//locations//keyRings//cryptoKeys/`. The keys referenced by `kms_key_names` must fully cover all regions of the backup&#x27;s instance configuration. Some examples: * For regional (single-region) instance configurations, specify a regional location KMS key. * For multi-region instance configurations of type `GOOGLE_MANAGED`, either specify a multi-region location KMS key or multiple regional location KMS keys that cover all regions in the instance configuration. * For an instance configuration of type `USER_MANAGED`, specify only regional location KMS keys to cover each region in the instance configuration. Multi-region location KMS keys aren&#x27;t supported for `USER_MANAGED` type instance configurations.
      &quot;A String&quot;,
    ],
  },
  &quot;fullBackupSpec&quot;: { # The specification for full backups. A full backup stores the entire contents of the database at a given version time. # The schedule creates only full backups.
  },
  &quot;incrementalBackupSpec&quot;: { # The specification for incremental backup chains. An incremental backup stores the delta of changes between a previous backup and the database contents at a given version time. An incremental backup chain consists of a full backup and zero or more successive incremental backups. The first backup created for an incremental backup chain is always a full backup. # The schedule creates incremental backup chains.
  },
  &quot;name&quot;: &quot;A String&quot;, # Identifier. Output only for the CreateBackupSchedule operation. Required for the UpdateBackupSchedule operation. A globally unique identifier for the backup schedule which cannot be changed. Values are of the form `projects//instances//databases//backupSchedules/a-z*[a-z0-9]` The final segment of the name must be between 2 and 60 characters in length.
  &quot;retentionDuration&quot;: &quot;A String&quot;, # Optional. The retention duration of a backup that must be at least 6 hours and at most 366 days. The backup is eligible to be automatically deleted once the retention period has elapsed.
  &quot;spec&quot;: { # Defines specifications of the backup schedule. # Optional. The schedule specification based on which the backup creations are triggered.
    &quot;cronSpec&quot;: { # CrontabSpec can be used to specify the version time and frequency at which the backup is created. # Cron style schedule specification.
      &quot;creationWindow&quot;: &quot;A String&quot;, # Output only. Scheduled backups contain an externally consistent copy of the database at the version time specified in `schedule_spec.cron_spec`. However, Spanner might not initiate the creation of the scheduled backups at that version time. Spanner initiates the creation of scheduled backups within the time window bounded by the version_time specified in `schedule_spec.cron_spec` and version_time + `creation_window`.
      &quot;text&quot;: &quot;A String&quot;, # Required. Textual representation of the crontab. User can customize the backup frequency and the backup version time using the cron expression. The version time must be in UTC timezone. The backup will contain an externally consistent copy of the database at the version time. Full backups must be scheduled a minimum of 12 hours apart and incremental backups must be scheduled a minimum of 4 hours apart. Examples of valid cron specifications: * `0 2/12 * * *` : every 12 hours at (2, 14) hours past midnight in UTC. * `0 2,14 * * *` : every 12 hours at (2, 14) hours past midnight in UTC. * `0 */4 * * *` : (incremental backups only) every 4 hours at (0, 4, 8, 12, 16, 20) hours past midnight in UTC. * `0 2 * * *` : once a day at 2 past midnight in UTC. * `0 2 * * 0` : once a week every Sunday at 2 past midnight in UTC. * `0 2 8 * *` : once a month on 8th day at 2 past midnight in UTC.
      &quot;timeZone&quot;: &quot;A String&quot;, # Output only. The time zone of the times in `CrontabSpec.text`. Currently, only UTC is supported.
    },
  },
  &quot;updateTime&quot;: &quot;A String&quot;, # Output only. The timestamp at which the schedule was last updated. If the schedule has never been updated, this field contains the timestamp when the schedule was first created.
}</pre>
</div>

<div class="method">
    <code class="details" id="getIamPolicy">getIamPolicy(resource, body=None, x__xgafv=None)</code>
  <pre>Gets the access control policy for a database or backup resource. Returns an empty policy if a database or backup exists but does not have a policy set. Authorization requires `spanner.databases.getIamPolicy` permission on resource. For backups, authorization requires `spanner.backups.getIamPolicy` permission on resource. For backup schedules, authorization requires `spanner.backupSchedules.getIamPolicy` permission on resource.

Args:
  resource: string, REQUIRED: The Cloud Spanner resource for which the policy is being retrieved. The format is `projects//instances/` for instance resources and `projects//instances//databases/` for database resources. (required)
  body: object, The request body.
    The object takes the form of:

{ # Request message for `GetIamPolicy` method.
  &quot;options&quot;: { # Encapsulates settings provided to GetIamPolicy. # OPTIONAL: A `GetPolicyOptions` object for specifying options to `GetIamPolicy`.
    &quot;requestedPolicyVersion&quot;: 42, # Optional. The maximum policy version that will be used to format the policy. Valid values are 0, 1, and 3. Requests specifying an invalid value will be rejected. Requests for policies with any conditional role bindings must specify version 3. Policies with no conditional role bindings may specify any valid value or leave the field unset. The policy in the response might use the policy version that you specified, or it might use a lower policy version. For example, if you specify version 3, but the policy has no conditional role bindings, the response uses version 1. To learn which resources support conditions in their IAM policies, see the [IAM documentation](https://cloud.google.com/iam/help/conditions/resource-policies).
  },
}

  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # An Identity and Access Management (IAM) policy, which specifies access controls for Google Cloud resources. A `Policy` is a collection of `bindings`. A `binding` binds one or more `members`, or principals, to a single `role`. Principals can be user accounts, service accounts, Google groups, and domains (such as G Suite). A `role` is a named list of permissions; each `role` can be an IAM predefined role or a user-created custom role. For some types of Google Cloud resources, a `binding` can also specify a `condition`, which is a logical expression that allows access to a resource only if the expression evaluates to `true`. A condition can add constraints based on attributes of the request, the resource, or both. To learn which resources support conditions in their IAM policies, see the [IAM documentation](https://cloud.google.com/iam/help/conditions/resource-policies). **JSON example:** ``` { &quot;bindings&quot;: [ { &quot;role&quot;: &quot;roles/resourcemanager.organizationAdmin&quot;, &quot;members&quot;: [ &quot;user:mike@example.com&quot;, &quot;group:admins@example.com&quot;, &quot;domain:google.com&quot;, &quot;serviceAccount:my-project-id@appspot.gserviceaccount.com&quot; ] }, { &quot;role&quot;: &quot;roles/resourcemanager.organizationViewer&quot;, &quot;members&quot;: [ &quot;user:eve@example.com&quot; ], &quot;condition&quot;: { &quot;title&quot;: &quot;expirable access&quot;, &quot;description&quot;: &quot;Does not grant access after Sep 2020&quot;, &quot;expression&quot;: &quot;request.time &lt; timestamp(&#x27;2020-10-01T00:00:00.000Z&#x27;)&quot;, } } ], &quot;etag&quot;: &quot;BwWWja0YfJA=&quot;, &quot;version&quot;: 3 } ``` **YAML example:** ``` bindings: - members: - user:mike@example.com - group:admins@example.com - domain:google.com - serviceAccount:my-project-id@appspot.gserviceaccount.com role: roles/resourcemanager.organizationAdmin - members: - user:eve@example.com role: roles/resourcemanager.organizationViewer condition: title: expirable access description: Does not grant access after Sep 2020 expression: request.time &lt; timestamp(&#x27;2020-10-01T00:00:00.000Z&#x27;) etag: BwWWja0YfJA= version: 3 ``` For a description of IAM and its features, see the [IAM documentation](https://cloud.google.com/iam/docs/).
  &quot;bindings&quot;: [ # Associates a list of `members`, or principals, with a `role`. Optionally, may specify a `condition` that determines how and when the `bindings` are applied. Each of the `bindings` must contain at least one principal. The `bindings` in a `Policy` can refer to up to 1,500 principals; up to 250 of these principals can be Google groups. Each occurrence of a principal counts towards these limits. For example, if the `bindings` grant 50 different roles to `user:alice@example.com`, and not to any other principal, then you can add another 1,450 principals to the `bindings` in the `Policy`.
    { # Associates `members`, or principals, with a `role`.
      &quot;condition&quot;: { # Represents a textual expression in the Common Expression Language (CEL) syntax. CEL is a C-like expression language. The syntax and semantics of CEL are documented at https://github.com/google/cel-spec. Example (Comparison): title: &quot;Summary size limit&quot; description: &quot;Determines if a summary is less than 100 chars&quot; expression: &quot;document.summary.size() &lt; 100&quot; Example (Equality): title: &quot;Requestor is owner&quot; description: &quot;Determines if requestor is the document owner&quot; expression: &quot;document.owner == request.auth.claims.email&quot; Example (Logic): title: &quot;Public documents&quot; description: &quot;Determine whether the document should be publicly visible&quot; expression: &quot;document.type != &#x27;private&#x27; &amp;&amp; document.type != &#x27;internal&#x27;&quot; Example (Data Manipulation): title: &quot;Notification string&quot; description: &quot;Create a notification string with a timestamp.&quot; expression: &quot;&#x27;New message received at &#x27; + string(document.create_time)&quot; The exact variables and functions that may be referenced within an expression are determined by the service that evaluates it. See the service documentation for additional information. # The condition that is associated with this binding. If the condition evaluates to `true`, then this binding applies to the current request. If the condition evaluates to `false`, then this binding does not apply to the current request. However, a different role binding might grant the same role to one or more of the principals in this binding. To learn which resources support conditions in their IAM policies, see the [IAM documentation](https://cloud.google.com/iam/help/conditions/resource-policies).
        &quot;description&quot;: &quot;A String&quot;, # Optional. Description of the expression. This is a longer text which describes the expression, e.g. when hovered over it in a UI.
        &quot;expression&quot;: &quot;A String&quot;, # Textual representation of an expression in Common Expression Language syntax.
        &quot;location&quot;: &quot;A String&quot;, # Optional. String indicating the location of the expression for error reporting, e.g. a file name and a position in the file.
        &quot;title&quot;: &quot;A String&quot;, # Optional. Title for the expression, i.e. a short string describing its purpose. This can be used e.g. in UIs which allow to enter the expression.
      },
      &quot;members&quot;: [ # Specifies the principals requesting access for a Google Cloud resource. `members` can have the following values: * `allUsers`: A special identifier that represents anyone who is on the internet; with or without a Google account. * `allAuthenticatedUsers`: A special identifier that represents anyone who is authenticated with a Google account or a service account. Does not include identities that come from external identity providers (IdPs) through identity federation. * `user:{emailid}`: An email address that represents a specific Google account. For example, `alice@example.com` . * `serviceAccount:{emailid}`: An email address that represents a Google service account. For example, `my-other-app@appspot.gserviceaccount.com`. * `serviceAccount:{projectid}.svc.id.goog[{namespace}/{kubernetes-sa}]`: An identifier for a [Kubernetes service account](https://cloud.google.com/kubernetes-engine/docs/how-to/kubernetes-service-accounts). For example, `my-project.svc.id.goog[my-namespace/my-kubernetes-sa]`. * `group:{emailid}`: An email address that represents a Google group. For example, `admins@example.com`. * `domain:{domain}`: The G Suite domain (primary) that represents all the users of that domain. For example, `google.com` or `example.com`. * `principal://iam.googleapis.com/locations/global/workforcePools/{pool_id}/subject/{subject_attribute_value}`: A single identity in a workforce identity pool. * `principalSet://iam.googleapis.com/locations/global/workforcePools/{pool_id}/group/{group_id}`: All workforce identities in a group. * `principalSet://iam.googleapis.com/locations/global/workforcePools/{pool_id}/attribute.{attribute_name}/{attribute_value}`: All workforce identities with a specific attribute value. * `principalSet://iam.googleapis.com/locations/global/workforcePools/{pool_id}/*`: All identities in a workforce identity pool. * `principal://iam.googleapis.com/projects/{project_number}/locations/global/workloadIdentityPools/{pool_id}/subject/{subject_attribute_value}`: A single identity in a workload identity pool. * `principalSet://iam.googleapis.com/projects/{project_number}/locations/global/workloadIdentityPools/{pool_id}/group/{group_id}`: A workload identity pool group. * `principalSet://iam.googleapis.com/projects/{project_number}/locations/global/workloadIdentityPools/{pool_id}/attribute.{attribute_name}/{attribute_value}`: All identities in a workload identity pool with a certain attribute. * `principalSet://iam.googleapis.com/projects/{project_number}/locations/global/workloadIdentityPools/{pool_id}/*`: All identities in a workload identity pool. * `deleted:user:{emailid}?uid={uniqueid}`: An email address (plus unique identifier) representing a user that has been recently deleted. For example, `alice@example.com?uid=123456789012345678901`. If the user is recovered, this value reverts to `user:{emailid}` and the recovered user retains the role in the binding. * `deleted:serviceAccount:{emailid}?uid={uniqueid}`: An email address (plus unique identifier) representing a service account that has been recently deleted. For example, `my-other-app@appspot.gserviceaccount.com?uid=123456789012345678901`. If the service account is undeleted, this value reverts to `serviceAccount:{emailid}` and the undeleted service account retains the role in the binding. * `deleted:group:{emailid}?uid={uniqueid}`: An email address (plus unique identifier) representing a Google group that has been recently deleted. For example, `admins@example.com?uid=123456789012345678901`. If the group is recovered, this value reverts to `group:{emailid}` and the recovered group retains the role in the binding. * `deleted:principal://iam.googleapis.com/locations/global/workforcePools/{pool_id}/subject/{subject_attribute_value}`: Deleted single identity in a workforce identity pool. For example, `deleted:principal://iam.googleapis.com/locations/global/workforcePools/my-pool-id/subject/my-subject-attribute-value`.
        &quot;A String&quot;,
      ],
      &quot;role&quot;: &quot;A String&quot;, # Role that is assigned to the list of `members`, or principals. For example, `roles/viewer`, `roles/editor`, or `roles/owner`. For an overview of the IAM roles and permissions, see the [IAM documentation](https://cloud.google.com/iam/docs/roles-overview). For a list of the available pre-defined roles, see [here](https://cloud.google.com/iam/docs/understanding-roles).
    },
  ],
  &quot;etag&quot;: &quot;A String&quot;, # `etag` is used for optimistic concurrency control as a way to help prevent simultaneous updates of a policy from overwriting each other. It is strongly suggested that systems make use of the `etag` in the read-modify-write cycle to perform policy updates in order to avoid race conditions: An `etag` is returned in the response to `getIamPolicy`, and systems are expected to put that etag in the request to `setIamPolicy` to ensure that their change will be applied to the same version of the policy. **Important:** If you use IAM Conditions, you must include the `etag` field whenever you call `setIamPolicy`. If you omit this field, then IAM allows you to overwrite a version `3` policy with a version `1` policy, and all of the conditions in the version `3` policy are lost.
  &quot;version&quot;: 42, # Specifies the format of the policy. Valid values are `0`, `1`, and `3`. Requests that specify an invalid value are rejected. Any operation that affects conditional role bindings must specify version `3`. This requirement applies to the following operations: * Getting a policy that includes a conditional role binding * Adding a conditional role binding to a policy * Changing a conditional role binding in a policy * Removing any role binding, with or without a condition, from a policy that includes conditions **Important:** If you use IAM Conditions, you must include the `etag` field whenever you call `setIamPolicy`. If you omit this field, then IAM allows you to overwrite a version `3` policy with a version `1` policy, and all of the conditions in the version `3` policy are lost. If a policy does not include any conditions, operations on that policy may specify any valid version or leave the field unset. To learn which resources support conditions in their IAM policies, see the [IAM documentation](https://cloud.google.com/iam/help/conditions/resource-policies).
}</pre>
</div>

<div class="method">
    <code class="details" id="list">list(parent, pageSize=None, pageToken=None, x__xgafv=None)</code>
  <pre>Lists all the backup schedules for the database.

Args:
  parent: string, Required. Database is the parent resource whose backup schedules should be listed. Values are of the form projects//instances//databases/ (required)
  pageSize: integer, Optional. Number of backup schedules to be returned in the response. If 0 or less, defaults to the server&#x27;s maximum allowed page size.
  pageToken: string, Optional. If non-empty, `page_token` should contain a next_page_token from a previous ListBackupSchedulesResponse to the same `parent`.
  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # The response for ListBackupSchedules.
  &quot;backupSchedules&quot;: [ # The list of backup schedules for a database.
    { # BackupSchedule expresses the automated backup creation specification for a Spanner database.
      &quot;encryptionConfig&quot;: { # Encryption configuration for the backup to create. # Optional. The encryption configuration that is used to encrypt the backup. If this field is not specified, the backup uses the same encryption configuration as the database.
        &quot;encryptionType&quot;: &quot;A String&quot;, # Required. The encryption type of the backup.
        &quot;kmsKeyName&quot;: &quot;A String&quot;, # Optional. This field is maintained for backwards compatibility. For new callers, we recommend using `kms_key_names` to specify the KMS key. Only use `kms_key_name` if the location of the KMS key matches the database instance&#x27;s configuration (location) exactly. For example, if the KMS location is in `us-central1` or `nam3`, then the database instance must also be in `us-central1` or `nam3`. The Cloud KMS key that is used to encrypt and decrypt the restored database. Set this field only when encryption_type is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form `projects//locations//keyRings//cryptoKeys/`.
        &quot;kmsKeyNames&quot;: [ # Optional. Specifies the KMS configuration for the one or more keys used to protect the backup. Values are of the form `projects//locations//keyRings//cryptoKeys/`. The keys referenced by `kms_key_names` must fully cover all regions of the backup&#x27;s instance configuration. Some examples: * For regional (single-region) instance configurations, specify a regional location KMS key. * For multi-region instance configurations of type `GOOGLE_MANAGED`, either specify a multi-region location KMS key or multiple regional location KMS keys that cover all regions in the instance configuration. * For an instance configuration of type `USER_MANAGED`, specify only regional location KMS keys to cover each region in the instance configuration. Multi-region location KMS keys aren&#x27;t supported for `USER_MANAGED` type instance configurations.
          &quot;A String&quot;,
        ],
      },
      &quot;fullBackupSpec&quot;: { # The specification for full backups. A full backup stores the entire contents of the database at a given version time. # The schedule creates only full backups.
      },
      &quot;incrementalBackupSpec&quot;: { # The specification for incremental backup chains. An incremental backup stores the delta of changes between a previous backup and the database contents at a given version time. An incremental backup chain consists of a full backup and zero or more successive incremental backups. The first backup created for an incremental backup chain is always a full backup. # The schedule creates incremental backup chains.
      },
      &quot;name&quot;: &quot;A String&quot;, # Identifier. Output only for the CreateBackupSchedule operation. Required for the UpdateBackupSchedule operation. A globally unique identifier for the backup schedule which cannot be changed. Values are of the form `projects//instances//databases//backupSchedules/a-z*[a-z0-9]` The final segment of the name must be between 2 and 60 characters in length.
      &quot;retentionDuration&quot;: &quot;A String&quot;, # Optional. The retention duration of a backup that must be at least 6 hours and at most 366 days. The backup is eligible to be automatically deleted once the retention period has elapsed.
      &quot;spec&quot;: { # Defines specifications of the backup schedule. # Optional. The schedule specification based on which the backup creations are triggered.
        &quot;cronSpec&quot;: { # CrontabSpec can be used to specify the version time and frequency at which the backup is created. # Cron style schedule specification.
          &quot;creationWindow&quot;: &quot;A String&quot;, # Output only. Scheduled backups contain an externally consistent copy of the database at the version time specified in `schedule_spec.cron_spec`. However, Spanner might not initiate the creation of the scheduled backups at that version time. Spanner initiates the creation of scheduled backups within the time window bounded by the version_time specified in `schedule_spec.cron_spec` and version_time + `creation_window`.
          &quot;text&quot;: &quot;A String&quot;, # Required. Textual representation of the crontab. User can customize the backup frequency and the backup version time using the cron expression. The version time must be in UTC timezone. The backup will contain an externally consistent copy of the database at the version time. Full backups must be scheduled a minimum of 12 hours apart and incremental backups must be scheduled a minimum of 4 hours apart. Examples of valid cron specifications: * `0 2/12 * * *` : every 12 hours at (2, 14) hours past midnight in UTC. * `0 2,14 * * *` : every 12 hours at (2, 14) hours past midnight in UTC. * `0 */4 * * *` : (incremental backups only) every 4 hours at (0, 4, 8, 12, 16, 20) hours past midnight in UTC. * `0 2 * * *` : once a day at 2 past midnight in UTC. * `0 2 * * 0` : once a week every Sunday at 2 past midnight in UTC. * `0 2 8 * *` : once a month on 8th day at 2 past midnight in UTC.
          &quot;timeZone&quot;: &quot;A String&quot;, # Output only. The time zone of the times in `CrontabSpec.text`. Currently, only UTC is supported.
        },
      },
      &quot;updateTime&quot;: &quot;A String&quot;, # Output only. The timestamp at which the schedule was last updated. If the schedule has never been updated, this field contains the timestamp when the schedule was first created.
    },
  ],
  &quot;nextPageToken&quot;: &quot;A String&quot;, # `next_page_token` can be sent in a subsequent ListBackupSchedules call to fetch more of the schedules.
}</pre>
</div>

<div class="method">
    <code class="details" id="list_next">list_next()</code>
  <pre>Retrieves the next page of results.

        Args:
          previous_request: The request for the previous page. (required)
          previous_response: The response from the request for the previous page. (required)

        Returns:
          A request object that you can call &#x27;execute()&#x27; on to request the next
          page. Returns None if there are no more items in the collection.
        </pre>
</div>

<div class="method">
    <code class="details" id="patch">patch(name, body=None, updateMask=None, x__xgafv=None)</code>
  <pre>Updates a backup schedule.

Args:
  name: string, Identifier. Output only for the CreateBackupSchedule operation. Required for the UpdateBackupSchedule operation. A globally unique identifier for the backup schedule which cannot be changed. Values are of the form `projects//instances//databases//backupSchedules/a-z*[a-z0-9]` The final segment of the name must be between 2 and 60 characters in length. (required)
  body: object, The request body.
    The object takes the form of:

{ # BackupSchedule expresses the automated backup creation specification for a Spanner database.
  &quot;encryptionConfig&quot;: { # Encryption configuration for the backup to create. # Optional. The encryption configuration that is used to encrypt the backup. If this field is not specified, the backup uses the same encryption configuration as the database.
    &quot;encryptionType&quot;: &quot;A String&quot;, # Required. The encryption type of the backup.
    &quot;kmsKeyName&quot;: &quot;A String&quot;, # Optional. This field is maintained for backwards compatibility. For new callers, we recommend using `kms_key_names` to specify the KMS key. Only use `kms_key_name` if the location of the KMS key matches the database instance&#x27;s configuration (location) exactly. For example, if the KMS location is in `us-central1` or `nam3`, then the database instance must also be in `us-central1` or `nam3`. The Cloud KMS key that is used to encrypt and decrypt the restored database. Set this field only when encryption_type is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form `projects//locations//keyRings//cryptoKeys/`.
    &quot;kmsKeyNames&quot;: [ # Optional. Specifies the KMS configuration for the one or more keys used to protect the backup. Values are of the form `projects//locations//keyRings//cryptoKeys/`. The keys referenced by `kms_key_names` must fully cover all regions of the backup&#x27;s instance configuration. Some examples: * For regional (single-region) instance configurations, specify a regional location KMS key. * For multi-region instance configurations of type `GOOGLE_MANAGED`, either specify a multi-region location KMS key or multiple regional location KMS keys that cover all regions in the instance configuration. * For an instance configuration of type `USER_MANAGED`, specify only regional location KMS keys to cover each region in the instance configuration. Multi-region location KMS keys aren&#x27;t supported for `USER_MANAGED` type instance configurations.
      &quot;A String&quot;,
    ],
  },
  &quot;fullBackupSpec&quot;: { # The specification for full backups. A full backup stores the entire contents of the database at a given version time. # The schedule creates only full backups.
  },
  &quot;incrementalBackupSpec&quot;: { # The specification for incremental backup chains. An incremental backup stores the delta of changes between a previous backup and the database contents at a given version time. An incremental backup chain consists of a full backup and zero or more successive incremental backups. The first backup created for an incremental backup chain is always a full backup. # The schedule creates incremental backup chains.
  },
  &quot;name&quot;: &quot;A String&quot;, # Identifier. Output only for the CreateBackupSchedule operation. Required for the UpdateBackupSchedule operation. A globally unique identifier for the backup schedule which cannot be changed. Values are of the form `projects//instances//databases//backupSchedules/a-z*[a-z0-9]` The final segment of the name must be between 2 and 60 characters in length.
  &quot;retentionDuration&quot;: &quot;A String&quot;, # Optional. The retention duration of a backup that must be at least 6 hours and at most 366 days. The backup is eligible to be automatically deleted once the retention period has elapsed.
  &quot;spec&quot;: { # Defines specifications of the backup schedule. # Optional. The schedule specification based on which the backup creations are triggered.
    &quot;cronSpec&quot;: { # CrontabSpec can be used to specify the version time and frequency at which the backup is created. # Cron style schedule specification.
      &quot;creationWindow&quot;: &quot;A String&quot;, # Output only. Scheduled backups contain an externally consistent copy of the database at the version time specified in `schedule_spec.cron_spec`. However, Spanner might not initiate the creation of the scheduled backups at that version time. Spanner initiates the creation of scheduled backups within the time window bounded by the version_time specified in `schedule_spec.cron_spec` and version_time + `creation_window`.
      &quot;text&quot;: &quot;A String&quot;, # Required. Textual representation of the crontab. User can customize the backup frequency and the backup version time using the cron expression. The version time must be in UTC timezone. The backup will contain an externally consistent copy of the database at the version time. Full backups must be scheduled a minimum of 12 hours apart and incremental backups must be scheduled a minimum of 4 hours apart. Examples of valid cron specifications: * `0 2/12 * * *` : every 12 hours at (2, 14) hours past midnight in UTC. * `0 2,14 * * *` : every 12 hours at (2, 14) hours past midnight in UTC. * `0 */4 * * *` : (incremental backups only) every 4 hours at (0, 4, 8, 12, 16, 20) hours past midnight in UTC. * `0 2 * * *` : once a day at 2 past midnight in UTC. * `0 2 * * 0` : once a week every Sunday at 2 past midnight in UTC. * `0 2 8 * *` : once a month on 8th day at 2 past midnight in UTC.
      &quot;timeZone&quot;: &quot;A String&quot;, # Output only. The time zone of the times in `CrontabSpec.text`. Currently, only UTC is supported.
    },
  },
  &quot;updateTime&quot;: &quot;A String&quot;, # Output only. The timestamp at which the schedule was last updated. If the schedule has never been updated, this field contains the timestamp when the schedule was first created.
}

  updateMask: string, Required. A mask specifying which fields in the BackupSchedule resource should be updated. This mask is relative to the BackupSchedule resource, not to the request message. The field mask must always be specified; this prevents any future fields from being erased accidentally.
  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # BackupSchedule expresses the automated backup creation specification for a Spanner database.
  &quot;encryptionConfig&quot;: { # Encryption configuration for the backup to create. # Optional. The encryption configuration that is used to encrypt the backup. If this field is not specified, the backup uses the same encryption configuration as the database.
    &quot;encryptionType&quot;: &quot;A String&quot;, # Required. The encryption type of the backup.
    &quot;kmsKeyName&quot;: &quot;A String&quot;, # Optional. This field is maintained for backwards compatibility. For new callers, we recommend using `kms_key_names` to specify the KMS key. Only use `kms_key_name` if the location of the KMS key matches the database instance&#x27;s configuration (location) exactly. For example, if the KMS location is in `us-central1` or `nam3`, then the database instance must also be in `us-central1` or `nam3`. The Cloud KMS key that is used to encrypt and decrypt the restored database. Set this field only when encryption_type is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form `projects//locations//keyRings//cryptoKeys/`.
    &quot;kmsKeyNames&quot;: [ # Optional. Specifies the KMS configuration for the one or more keys used to protect the backup. Values are of the form `projects//locations//keyRings//cryptoKeys/`. The keys referenced by `kms_key_names` must fully cover all regions of the backup&#x27;s instance configuration. Some examples: * For regional (single-region) instance configurations, specify a regional location KMS key. * For multi-region instance configurations of type `GOOGLE_MANAGED`, either specify a multi-region location KMS key or multiple regional location KMS keys that cover all regions in the instance configuration. * For an instance configuration of type `USER_MANAGED`, specify only regional location KMS keys to cover each region in the instance configuration. Multi-region location KMS keys aren&#x27;t supported for `USER_MANAGED` type instance configurations.
      &quot;A String&quot;,
    ],
  },
  &quot;fullBackupSpec&quot;: { # The specification for full backups. A full backup stores the entire contents of the database at a given version time. # The schedule creates only full backups.
  },
  &quot;incrementalBackupSpec&quot;: { # The specification for incremental backup chains. An incremental backup stores the delta of changes between a previous backup and the database contents at a given version time. An incremental backup chain consists of a full backup and zero or more successive incremental backups. The first backup created for an incremental backup chain is always a full backup. # The schedule creates incremental backup chains.
  },
  &quot;name&quot;: &quot;A String&quot;, # Identifier. Output only for the CreateBackupSchedule operation. Required for the UpdateBackupSchedule operation. A globally unique identifier for the backup schedule which cannot be changed. Values are of the form `projects//instances//databases//backupSchedules/a-z*[a-z0-9]` The final segment of the name must be between 2 and 60 characters in length.
  &quot;retentionDuration&quot;: &quot;A String&quot;, # Optional. The retention duration of a backup that must be at least 6 hours and at most 366 days. The backup is eligible to be automatically deleted once the retention period has elapsed.
  &quot;spec&quot;: { # Defines specifications of the backup schedule. # Optional. The schedule specification based on which the backup creations are triggered.
    &quot;cronSpec&quot;: { # CrontabSpec can be used to specify the version time and frequency at which the backup is created. # Cron style schedule specification.
      &quot;creationWindow&quot;: &quot;A String&quot;, # Output only. Scheduled backups contain an externally consistent copy of the database at the version time specified in `schedule_spec.cron_spec`. However, Spanner might not initiate the creation of the scheduled backups at that version time. Spanner initiates the creation of scheduled backups within the time window bounded by the version_time specified in `schedule_spec.cron_spec` and version_time + `creation_window`.
      &quot;text&quot;: &quot;A String&quot;, # Required. Textual representation of the crontab. User can customize the backup frequency and the backup version time using the cron expression. The version time must be in UTC timezone. The backup will contain an externally consistent copy of the database at the version time. Full backups must be scheduled a minimum of 12 hours apart and incremental backups must be scheduled a minimum of 4 hours apart. Examples of valid cron specifications: * `0 2/12 * * *` : every 12 hours at (2, 14) hours past midnight in UTC. * `0 2,14 * * *` : every 12 hours at (2, 14) hours past midnight in UTC. * `0 */4 * * *` : (incremental backups only) every 4 hours at (0, 4, 8, 12, 16, 20) hours past midnight in UTC. * `0 2 * * *` : once a day at 2 past midnight in UTC. * `0 2 * * 0` : once a week every Sunday at 2 past midnight in UTC. * `0 2 8 * *` : once a month on 8th day at 2 past midnight in UTC.
      &quot;timeZone&quot;: &quot;A String&quot;, # Output only. The time zone of the times in `CrontabSpec.text`. Currently, only UTC is supported.
    },
  },
  &quot;updateTime&quot;: &quot;A String&quot;, # Output only. The timestamp at which the schedule was last updated. If the schedule has never been updated, this field contains the timestamp when the schedule was first created.
}</pre>
</div>

<div class="method">
    <code class="details" id="setIamPolicy">setIamPolicy(resource, body=None, x__xgafv=None)</code>
  <pre>Sets the access control policy on a database or backup resource. Replaces any existing policy. Authorization requires `spanner.databases.setIamPolicy` permission on resource. For backups, authorization requires `spanner.backups.setIamPolicy` permission on resource. For backup schedules, authorization requires `spanner.backupSchedules.setIamPolicy` permission on resource.

Args:
  resource: string, REQUIRED: The Cloud Spanner resource for which the policy is being set. The format is `projects//instances/` for instance resources and `projects//instances//databases/` for databases resources. (required)
  body: object, The request body.
    The object takes the form of:

{ # Request message for `SetIamPolicy` method.
  &quot;policy&quot;: { # An Identity and Access Management (IAM) policy, which specifies access controls for Google Cloud resources. A `Policy` is a collection of `bindings`. A `binding` binds one or more `members`, or principals, to a single `role`. Principals can be user accounts, service accounts, Google groups, and domains (such as G Suite). A `role` is a named list of permissions; each `role` can be an IAM predefined role or a user-created custom role. For some types of Google Cloud resources, a `binding` can also specify a `condition`, which is a logical expression that allows access to a resource only if the expression evaluates to `true`. A condition can add constraints based on attributes of the request, the resource, or both. To learn which resources support conditions in their IAM policies, see the [IAM documentation](https://cloud.google.com/iam/help/conditions/resource-policies). **JSON example:** ``` { &quot;bindings&quot;: [ { &quot;role&quot;: &quot;roles/resourcemanager.organizationAdmin&quot;, &quot;members&quot;: [ &quot;user:mike@example.com&quot;, &quot;group:admins@example.com&quot;, &quot;domain:google.com&quot;, &quot;serviceAccount:my-project-id@appspot.gserviceaccount.com&quot; ] }, { &quot;role&quot;: &quot;roles/resourcemanager.organizationViewer&quot;, &quot;members&quot;: [ &quot;user:eve@example.com&quot; ], &quot;condition&quot;: { &quot;title&quot;: &quot;expirable access&quot;, &quot;description&quot;: &quot;Does not grant access after Sep 2020&quot;, &quot;expression&quot;: &quot;request.time &lt; timestamp(&#x27;2020-10-01T00:00:00.000Z&#x27;)&quot;, } } ], &quot;etag&quot;: &quot;BwWWja0YfJA=&quot;, &quot;version&quot;: 3 } ``` **YAML example:** ``` bindings: - members: - user:mike@example.com - group:admins@example.com - domain:google.com - serviceAccount:my-project-id@appspot.gserviceaccount.com role: roles/resourcemanager.organizationAdmin - members: - user:eve@example.com role: roles/resourcemanager.organizationViewer condition: title: expirable access description: Does not grant access after Sep 2020 expression: request.time &lt; timestamp(&#x27;2020-10-01T00:00:00.000Z&#x27;) etag: BwWWja0YfJA= version: 3 ``` For a description of IAM and its features, see the [IAM documentation](https://cloud.google.com/iam/docs/). # REQUIRED: The complete policy to be applied to the `resource`. The size of the policy is limited to a few 10s of KB. An empty policy is a valid policy but certain Google Cloud services (such as Projects) might reject them.
    &quot;bindings&quot;: [ # Associates a list of `members`, or principals, with a `role`. Optionally, may specify a `condition` that determines how and when the `bindings` are applied. Each of the `bindings` must contain at least one principal. The `bindings` in a `Policy` can refer to up to 1,500 principals; up to 250 of these principals can be Google groups. Each occurrence of a principal counts towards these limits. For example, if the `bindings` grant 50 different roles to `user:alice@example.com`, and not to any other principal, then you can add another 1,450 principals to the `bindings` in the `Policy`.
      { # Associates `members`, or principals, with a `role`.
        &quot;condition&quot;: { # Represents a textual expression in the Common Expression Language (CEL) syntax. CEL is a C-like expression language. The syntax and semantics of CEL are documented at https://github.com/google/cel-spec. Example (Comparison): title: &quot;Summary size limit&quot; description: &quot;Determines if a summary is less than 100 chars&quot; expression: &quot;document.summary.size() &lt; 100&quot; Example (Equality): title: &quot;Requestor is owner&quot; description: &quot;Determines if requestor is the document owner&quot; expression: &quot;document.owner == request.auth.claims.email&quot; Example (Logic): title: &quot;Public documents&quot; description: &quot;Determine whether the document should be publicly visible&quot; expression: &quot;document.type != &#x27;private&#x27; &amp;&amp; document.type != &#x27;internal&#x27;&quot; Example (Data Manipulation): title: &quot;Notification string&quot; description: &quot;Create a notification string with a timestamp.&quot; expression: &quot;&#x27;New message received at &#x27; + string(document.create_time)&quot; The exact variables and functions that may be referenced within an expression are determined by the service that evaluates it. See the service documentation for additional information. # The condition that is associated with this binding. If the condition evaluates to `true`, then this binding applies to the current request. If the condition evaluates to `false`, then this binding does not apply to the current request. However, a different role binding might grant the same role to one or more of the principals in this binding. To learn which resources support conditions in their IAM policies, see the [IAM documentation](https://cloud.google.com/iam/help/conditions/resource-policies).
          &quot;description&quot;: &quot;A String&quot;, # Optional. Description of the expression. This is a longer text which describes the expression, e.g. when hovered over it in a UI.
          &quot;expression&quot;: &quot;A String&quot;, # Textual representation of an expression in Common Expression Language syntax.
          &quot;location&quot;: &quot;A String&quot;, # Optional. String indicating the location of the expression for error reporting, e.g. a file name and a position in the file.
          &quot;title&quot;: &quot;A String&quot;, # Optional. Title for the expression, i.e. a short string describing its purpose. This can be used e.g. in UIs which allow to enter the expression.
        },
        &quot;members&quot;: [ # Specifies the principals requesting access for a Google Cloud resource. `members` can have the following values: * `allUsers`: A special identifier that represents anyone who is on the internet; with or without a Google account. * `allAuthenticatedUsers`: A special identifier that represents anyone who is authenticated with a Google account or a service account. Does not include identities that come from external identity providers (IdPs) through identity federation. * `user:{emailid}`: An email address that represents a specific Google account. For example, `alice@example.com` . * `serviceAccount:{emailid}`: An email address that represents a Google service account. For example, `my-other-app@appspot.gserviceaccount.com`. * `serviceAccount:{projectid}.svc.id.goog[{namespace}/{kubernetes-sa}]`: An identifier for a [Kubernetes service account](https://cloud.google.com/kubernetes-engine/docs/how-to/kubernetes-service-accounts). For example, `my-project.svc.id.goog[my-namespace/my-kubernetes-sa]`. * `group:{emailid}`: An email address that represents a Google group. For example, `admins@example.com`. * `domain:{domain}`: The G Suite domain (primary) that represents all the users of that domain. For example, `google.com` or `example.com`. * `principal://iam.googleapis.com/locations/global/workforcePools/{pool_id}/subject/{subject_attribute_value}`: A single identity in a workforce identity pool. * `principalSet://iam.googleapis.com/locations/global/workforcePools/{pool_id}/group/{group_id}`: All workforce identities in a group. * `principalSet://iam.googleapis.com/locations/global/workforcePools/{pool_id}/attribute.{attribute_name}/{attribute_value}`: All workforce identities with a specific attribute value. * `principalSet://iam.googleapis.com/locations/global/workforcePools/{pool_id}/*`: All identities in a workforce identity pool. * `principal://iam.googleapis.com/projects/{project_number}/locations/global/workloadIdentityPools/{pool_id}/subject/{subject_attribute_value}`: A single identity in a workload identity pool. * `principalSet://iam.googleapis.com/projects/{project_number}/locations/global/workloadIdentityPools/{pool_id}/group/{group_id}`: A workload identity pool group. * `principalSet://iam.googleapis.com/projects/{project_number}/locations/global/workloadIdentityPools/{pool_id}/attribute.{attribute_name}/{attribute_value}`: All identities in a workload identity pool with a certain attribute. * `principalSet://iam.googleapis.com/projects/{project_number}/locations/global/workloadIdentityPools/{pool_id}/*`: All identities in a workload identity pool. * `deleted:user:{emailid}?uid={uniqueid}`: An email address (plus unique identifier) representing a user that has been recently deleted. For example, `alice@example.com?uid=123456789012345678901`. If the user is recovered, this value reverts to `user:{emailid}` and the recovered user retains the role in the binding. * `deleted:serviceAccount:{emailid}?uid={uniqueid}`: An email address (plus unique identifier) representing a service account that has been recently deleted. For example, `my-other-app@appspot.gserviceaccount.com?uid=123456789012345678901`. If the service account is undeleted, this value reverts to `serviceAccount:{emailid}` and the undeleted service account retains the role in the binding. * `deleted:group:{emailid}?uid={uniqueid}`: An email address (plus unique identifier) representing a Google group that has been recently deleted. For example, `admins@example.com?uid=123456789012345678901`. If the group is recovered, this value reverts to `group:{emailid}` and the recovered group retains the role in the binding. * `deleted:principal://iam.googleapis.com/locations/global/workforcePools/{pool_id}/subject/{subject_attribute_value}`: Deleted single identity in a workforce identity pool. For example, `deleted:principal://iam.googleapis.com/locations/global/workforcePools/my-pool-id/subject/my-subject-attribute-value`.
          &quot;A String&quot;,
        ],
        &quot;role&quot;: &quot;A String&quot;, # Role that is assigned to the list of `members`, or principals. For example, `roles/viewer`, `roles/editor`, or `roles/owner`. For an overview of the IAM roles and permissions, see the [IAM documentation](https://cloud.google.com/iam/docs/roles-overview). For a list of the available pre-defined roles, see [here](https://cloud.google.com/iam/docs/understanding-roles).
      },
    ],
    &quot;etag&quot;: &quot;A String&quot;, # `etag` is used for optimistic concurrency control as a way to help prevent simultaneous updates of a policy from overwriting each other. It is strongly suggested that systems make use of the `etag` in the read-modify-write cycle to perform policy updates in order to avoid race conditions: An `etag` is returned in the response to `getIamPolicy`, and systems are expected to put that etag in the request to `setIamPolicy` to ensure that their change will be applied to the same version of the policy. **Important:** If you use IAM Conditions, you must include the `etag` field whenever you call `setIamPolicy`. If you omit this field, then IAM allows you to overwrite a version `3` policy with a version `1` policy, and all of the conditions in the version `3` policy are lost.
    &quot;version&quot;: 42, # Specifies the format of the policy. Valid values are `0`, `1`, and `3`. Requests that specify an invalid value are rejected. Any operation that affects conditional role bindings must specify version `3`. This requirement applies to the following operations: * Getting a policy that includes a conditional role binding * Adding a conditional role binding to a policy * Changing a conditional role binding in a policy * Removing any role binding, with or without a condition, from a policy that includes conditions **Important:** If you use IAM Conditions, you must include the `etag` field whenever you call `setIamPolicy`. If you omit this field, then IAM allows you to overwrite a version `3` policy with a version `1` policy, and all of the conditions in the version `3` policy are lost. If a policy does not include any conditions, operations on that policy may specify any valid version or leave the field unset. To learn which resources support conditions in their IAM policies, see the [IAM documentation](https://cloud.google.com/iam/help/conditions/resource-policies).
  },
}

  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # An Identity and Access Management (IAM) policy, which specifies access controls for Google Cloud resources. A `Policy` is a collection of `bindings`. A `binding` binds one or more `members`, or principals, to a single `role`. Principals can be user accounts, service accounts, Google groups, and domains (such as G Suite). A `role` is a named list of permissions; each `role` can be an IAM predefined role or a user-created custom role. For some types of Google Cloud resources, a `binding` can also specify a `condition`, which is a logical expression that allows access to a resource only if the expression evaluates to `true`. A condition can add constraints based on attributes of the request, the resource, or both. To learn which resources support conditions in their IAM policies, see the [IAM documentation](https://cloud.google.com/iam/help/conditions/resource-policies). **JSON example:** ``` { &quot;bindings&quot;: [ { &quot;role&quot;: &quot;roles/resourcemanager.organizationAdmin&quot;, &quot;members&quot;: [ &quot;user:mike@example.com&quot;, &quot;group:admins@example.com&quot;, &quot;domain:google.com&quot;, &quot;serviceAccount:my-project-id@appspot.gserviceaccount.com&quot; ] }, { &quot;role&quot;: &quot;roles/resourcemanager.organizationViewer&quot;, &quot;members&quot;: [ &quot;user:eve@example.com&quot; ], &quot;condition&quot;: { &quot;title&quot;: &quot;expirable access&quot;, &quot;description&quot;: &quot;Does not grant access after Sep 2020&quot;, &quot;expression&quot;: &quot;request.time &lt; timestamp(&#x27;2020-10-01T00:00:00.000Z&#x27;)&quot;, } } ], &quot;etag&quot;: &quot;BwWWja0YfJA=&quot;, &quot;version&quot;: 3 } ``` **YAML example:** ``` bindings: - members: - user:mike@example.com - group:admins@example.com - domain:google.com - serviceAccount:my-project-id@appspot.gserviceaccount.com role: roles/resourcemanager.organizationAdmin - members: - user:eve@example.com role: roles/resourcemanager.organizationViewer condition: title: expirable access description: Does not grant access after Sep 2020 expression: request.time &lt; timestamp(&#x27;2020-10-01T00:00:00.000Z&#x27;) etag: BwWWja0YfJA= version: 3 ``` For a description of IAM and its features, see the [IAM documentation](https://cloud.google.com/iam/docs/).
  &quot;bindings&quot;: [ # Associates a list of `members`, or principals, with a `role`. Optionally, may specify a `condition` that determines how and when the `bindings` are applied. Each of the `bindings` must contain at least one principal. The `bindings` in a `Policy` can refer to up to 1,500 principals; up to 250 of these principals can be Google groups. Each occurrence of a principal counts towards these limits. For example, if the `bindings` grant 50 different roles to `user:alice@example.com`, and not to any other principal, then you can add another 1,450 principals to the `bindings` in the `Policy`.
    { # Associates `members`, or principals, with a `role`.
      &quot;condition&quot;: { # Represents a textual expression in the Common Expression Language (CEL) syntax. CEL is a C-like expression language. The syntax and semantics of CEL are documented at https://github.com/google/cel-spec. Example (Comparison): title: &quot;Summary size limit&quot; description: &quot;Determines if a summary is less than 100 chars&quot; expression: &quot;document.summary.size() &lt; 100&quot; Example (Equality): title: &quot;Requestor is owner&quot; description: &quot;Determines if requestor is the document owner&quot; expression: &quot;document.owner == request.auth.claims.email&quot; Example (Logic): title: &quot;Public documents&quot; description: &quot;Determine whether the document should be publicly visible&quot; expression: &quot;document.type != &#x27;private&#x27; &amp;&amp; document.type != &#x27;internal&#x27;&quot; Example (Data Manipulation): title: &quot;Notification string&quot; description: &quot;Create a notification string with a timestamp.&quot; expression: &quot;&#x27;New message received at &#x27; + string(document.create_time)&quot; The exact variables and functions that may be referenced within an expression are determined by the service that evaluates it. See the service documentation for additional information. # The condition that is associated with this binding. If the condition evaluates to `true`, then this binding applies to the current request. If the condition evaluates to `false`, then this binding does not apply to the current request. However, a different role binding might grant the same role to one or more of the principals in this binding. To learn which resources support conditions in their IAM policies, see the [IAM documentation](https://cloud.google.com/iam/help/conditions/resource-policies).
        &quot;description&quot;: &quot;A String&quot;, # Optional. Description of the expression. This is a longer text which describes the expression, e.g. when hovered over it in a UI.
        &quot;expression&quot;: &quot;A String&quot;, # Textual representation of an expression in Common Expression Language syntax.
        &quot;location&quot;: &quot;A String&quot;, # Optional. String indicating the location of the expression for error reporting, e.g. a file name and a position in the file.
        &quot;title&quot;: &quot;A String&quot;, # Optional. Title for the expression, i.e. a short string describing its purpose. This can be used e.g. in UIs which allow to enter the expression.
      },
      &quot;members&quot;: [ # Specifies the principals requesting access for a Google Cloud resource. `members` can have the following values: * `allUsers`: A special identifier that represents anyone who is on the internet; with or without a Google account. * `allAuthenticatedUsers`: A special identifier that represents anyone who is authenticated with a Google account or a service account. Does not include identities that come from external identity providers (IdPs) through identity federation. * `user:{emailid}`: An email address that represents a specific Google account. For example, `alice@example.com` . * `serviceAccount:{emailid}`: An email address that represents a Google service account. For example, `my-other-app@appspot.gserviceaccount.com`. * `serviceAccount:{projectid}.svc.id.goog[{namespace}/{kubernetes-sa}]`: An identifier for a [Kubernetes service account](https://cloud.google.com/kubernetes-engine/docs/how-to/kubernetes-service-accounts). For example, `my-project.svc.id.goog[my-namespace/my-kubernetes-sa]`. * `group:{emailid}`: An email address that represents a Google group. For example, `admins@example.com`. * `domain:{domain}`: The G Suite domain (primary) that represents all the users of that domain. For example, `google.com` or `example.com`. * `principal://iam.googleapis.com/locations/global/workforcePools/{pool_id}/subject/{subject_attribute_value}`: A single identity in a workforce identity pool. * `principalSet://iam.googleapis.com/locations/global/workforcePools/{pool_id}/group/{group_id}`: All workforce identities in a group. * `principalSet://iam.googleapis.com/locations/global/workforcePools/{pool_id}/attribute.{attribute_name}/{attribute_value}`: All workforce identities with a specific attribute value. * `principalSet://iam.googleapis.com/locations/global/workforcePools/{pool_id}/*`: All identities in a workforce identity pool. * `principal://iam.googleapis.com/projects/{project_number}/locations/global/workloadIdentityPools/{pool_id}/subject/{subject_attribute_value}`: A single identity in a workload identity pool. * `principalSet://iam.googleapis.com/projects/{project_number}/locations/global/workloadIdentityPools/{pool_id}/group/{group_id}`: A workload identity pool group. * `principalSet://iam.googleapis.com/projects/{project_number}/locations/global/workloadIdentityPools/{pool_id}/attribute.{attribute_name}/{attribute_value}`: All identities in a workload identity pool with a certain attribute. * `principalSet://iam.googleapis.com/projects/{project_number}/locations/global/workloadIdentityPools/{pool_id}/*`: All identities in a workload identity pool. * `deleted:user:{emailid}?uid={uniqueid}`: An email address (plus unique identifier) representing a user that has been recently deleted. For example, `alice@example.com?uid=123456789012345678901`. If the user is recovered, this value reverts to `user:{emailid}` and the recovered user retains the role in the binding. * `deleted:serviceAccount:{emailid}?uid={uniqueid}`: An email address (plus unique identifier) representing a service account that has been recently deleted. For example, `my-other-app@appspot.gserviceaccount.com?uid=123456789012345678901`. If the service account is undeleted, this value reverts to `serviceAccount:{emailid}` and the undeleted service account retains the role in the binding. * `deleted:group:{emailid}?uid={uniqueid}`: An email address (plus unique identifier) representing a Google group that has been recently deleted. For example, `admins@example.com?uid=123456789012345678901`. If the group is recovered, this value reverts to `group:{emailid}` and the recovered group retains the role in the binding. * `deleted:principal://iam.googleapis.com/locations/global/workforcePools/{pool_id}/subject/{subject_attribute_value}`: Deleted single identity in a workforce identity pool. For example, `deleted:principal://iam.googleapis.com/locations/global/workforcePools/my-pool-id/subject/my-subject-attribute-value`.
        &quot;A String&quot;,
      ],
      &quot;role&quot;: &quot;A String&quot;, # Role that is assigned to the list of `members`, or principals. For example, `roles/viewer`, `roles/editor`, or `roles/owner`. For an overview of the IAM roles and permissions, see the [IAM documentation](https://cloud.google.com/iam/docs/roles-overview). For a list of the available pre-defined roles, see [here](https://cloud.google.com/iam/docs/understanding-roles).
    },
  ],
  &quot;etag&quot;: &quot;A String&quot;, # `etag` is used for optimistic concurrency control as a way to help prevent simultaneous updates of a policy from overwriting each other. It is strongly suggested that systems make use of the `etag` in the read-modify-write cycle to perform policy updates in order to avoid race conditions: An `etag` is returned in the response to `getIamPolicy`, and systems are expected to put that etag in the request to `setIamPolicy` to ensure that their change will be applied to the same version of the policy. **Important:** If you use IAM Conditions, you must include the `etag` field whenever you call `setIamPolicy`. If you omit this field, then IAM allows you to overwrite a version `3` policy with a version `1` policy, and all of the conditions in the version `3` policy are lost.
  &quot;version&quot;: 42, # Specifies the format of the policy. Valid values are `0`, `1`, and `3`. Requests that specify an invalid value are rejected. Any operation that affects conditional role bindings must specify version `3`. This requirement applies to the following operations: * Getting a policy that includes a conditional role binding * Adding a conditional role binding to a policy * Changing a conditional role binding in a policy * Removing any role binding, with or without a condition, from a policy that includes conditions **Important:** If you use IAM Conditions, you must include the `etag` field whenever you call `setIamPolicy`. If you omit this field, then IAM allows you to overwrite a version `3` policy with a version `1` policy, and all of the conditions in the version `3` policy are lost. If a policy does not include any conditions, operations on that policy may specify any valid version or leave the field unset. To learn which resources support conditions in their IAM policies, see the [IAM documentation](https://cloud.google.com/iam/help/conditions/resource-policies).
}</pre>
</div>

<div class="method">
    <code class="details" id="testIamPermissions">testIamPermissions(resource, body=None, x__xgafv=None)</code>
  <pre>Returns permissions that the caller has on the specified database or backup resource. Attempting this RPC on a non-existent Cloud Spanner database will result in a NOT_FOUND error if the user has `spanner.databases.list` permission on the containing Cloud Spanner instance. Otherwise returns an empty set of permissions. Calling this method on a backup that does not exist will result in a NOT_FOUND error if the user has `spanner.backups.list` permission on the containing instance. Calling this method on a backup schedule that does not exist will result in a NOT_FOUND error if the user has `spanner.backupSchedules.list` permission on the containing database.

Args:
  resource: string, REQUIRED: The Cloud Spanner resource for which permissions are being tested. The format is `projects//instances/` for instance resources and `projects//instances//databases/` for database resources. (required)
  body: object, The request body.
    The object takes the form of:

{ # Request message for `TestIamPermissions` method.
  &quot;permissions&quot;: [ # REQUIRED: The set of permissions to check for &#x27;resource&#x27;. Permissions with wildcards (such as &#x27;*&#x27;, &#x27;spanner.*&#x27;, &#x27;spanner.instances.*&#x27;) are not allowed.
    &quot;A String&quot;,
  ],
}

  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # Response message for `TestIamPermissions` method.
  &quot;permissions&quot;: [ # A subset of `TestPermissionsRequest.permissions` that the caller is allowed.
    &quot;A String&quot;,
  ],
}</pre>
</div>

</body></html>